How to write a business proposal that wins the job

Quick answer

A proposal that wins the job restates the client’s problem in their words, sets out exactly what you will and will not do, prices it as two or three clear options, shows proof you have done it before, and ends with one next step and an expiry date. Keep it short enough to read on a phone.

Picture a kitchen fitter who quotes for three jobs a week and wins one. The quotes are accurate and fairly priced. They are also a line of figures on a plain email, sent two days after a competitor sent a tidy document that explained what happens on day one, who turns up and what the price covers. The fitter is not losing on price. The fitter is losing on clarity. This guide walks through building a proposal, step by step, that fixes that.

Proposal, quote or estimate: know which one you are sending

A quote is a fixed price for a defined job. An estimate is an informed guess that can move. A proposal wraps a quote in the reasoning a buyer needs to say yes: why this approach, what is included, what could change and what happens next. Small jobs need a quote. Anything over a few hundred pounds, anything with options, and anything going to a business buyer who has to justify the spend to someone else needs a proposal.

If you only need the price part, our free quote template for trades covers it. The rest of this guide is about the wrapper that turns a price into a decision.

Step 1: ask before you write

The best proposals are mostly written during the first conversation. Before you open a document, get answers to five questions:

1. What problem are you trying to fix, and what happens if you do nothing?
2. What does a good result look like in six months?
3. Who else has a say in the decision?
4. Is there a budget range or a date that matters?
5. Have you had quotes from anyone else, and what did you think of them?

Write the answers down in the client’s own words. You will quote them back in the opening section, and nothing persuades like a buyer reading their own priorities on your letterhead.

Step 2: open with their problem, not your history

Most proposals start with “About us”. Move that to the back. Open with two or three sentences that restate the situation: “Your current boiler is 18 years old, the downstairs radiators are cold by mid-afternoon, and you want the work done before the baby arrives in March.” The buyer instantly knows you listened. Then state the outcome you are proposing in one line.

Step 3: write the scope as included and not included

Scope arguments are where profitable jobs turn into unpaid weekends. Two short lists stop most of them:

• Included: every task, material grade and visit you are pricing.
• Not included: the things a reasonable client might assume, such as making good, skip hire, plastering, planning drawings or content writing.

Add a line on what triggers a change: “If we find rotten joists once the floor is up, we will stop, show you, and price the repair before doing it.” That one sentence protects your margin and the relationship.

Step 4: price it as options

A single price invites a yes or no. Two or three options invite a choice between yeses. Keep them genuinely different, and make the middle one the option you would recommend.

Show each price with VAT treatment stated plainly. If you are VAT registered, say whether figures include it. Registration becomes compulsory once taxable turnover goes over the threshold, which GOV.UK lists as £90,000 over a rolling 12 months at the time of writing, November 2026. If you are still working out what to charge in the first place, read how to price your services before you build the options.

Step 5: prove you can do it

Proof beats adjectives. Pick two pieces that match the job: a short case study with a photo, a named reference the buyer can call, an accreditation number, or your insurance details. For commercial buyers, add the documents they will ask for anyway. Our guide to winning commercial contracts lists the usual ones, from method statements to public liability certificates.

Keep proof relevant. A buyer replacing a bathroom does not need your full client list. They need to see one bathroom you finished, ideally in a similar house.

Step 6: set the terms before anyone signs

Put payment terms, deposit, stage payments and the start date on one page. State when the proposal expires, usually 30 days, so you are not held to old material prices. For business clients, you can mention that late payment can carry statutory interest: GOV.UK sets this at 8% plus the Bank of England base rate for business-to-business debts. Then make sure your invoices carry the details GOV.UK says an invoice must show, set out in its guide to invoicing and taking payment.

Step 7: make it look like a business, then follow up

Presentation is part of the price. A proposal on a consistent template, with your logo, colours and contact details in the same place every time, reads as a firm that will turn up when it says. You do not need a designer for every proposal. You need one good template. Our letterhead design guide shows what to put on it, and a brand identity at £299 gives you the colours, fonts and rules to keep every document matching.

Send it as a PDF, then follow up two working days later with one question: “Is there anything in the proposal you would like me to change?” It is easier to answer than “Have you decided?”, and it often surfaces the real objection.

The words matter as much as the layout

Write in short paragraphs. Use “you” more than “we”. Replace “high quality” with the specific thing that makes it high quality, such as the brand of fittings or the number of coats. Read the proposal aloud once before sending; anything you stumble over, the buyer will too.

If writing is the part you dread, you can hand it over. Our content and copywriting service runs from £199 a month and covers the reusable copy that makes proposals faster: service descriptions, case studies and the paragraphs you paste into every document. Every price we charge is on the pricing page.

A one-page check before you press send

• Does the first paragraph describe their problem, not your company?
• Is every inclusion and exclusion written down?
• Are there two or three options, with the recommended one marked?
• Is VAT treatment clear on every figure?
• Is there proof that matches this job?
• Are payment terms, the start date and the expiry date on the page?
• Is there one obvious next step, such as “reply to accept” or “pay the deposit here”?

Tick all seven and you are no longer competing on price alone.